MSP430F5529: Why doesn't while(1); halt the program?

Hi, Andy

Andy Delle said:

I tried making the (1) a volatile variable but that did not work.

What is this (1)? I am not sure about (1).

Andy Delle said:

I'm getting strange behavior on my I/O ports when running but with a simple test program making the pins produce  square wave, it works file.

Yet in the program of interest I am getting continuous pulses on a port which is a peripheral  data port after inserting the while(1);

Seems Launchpad work normal.

There are a lot of MSP430 code example you can refer to in MSP430 SDK:

    C:\ti\msp\MSP430Ware_3_80_14_01\examples\devices\MSP430F5xx_6xx\MSP430F55xx_Code_Examples\C

Regards,

Helic

HE means that instead of while(1) he put in while(x) where x is a volatile variable.

OP: Share your code. Use the insert->code function at the bottom of the message box.

while(1) does not "halt" the program. It merely puts main() into an infinite loop.

If your GPIO's are set up with timers and interrupts, they are perfectly happy to run when main() is in an infinite loop.

If for some reason I want to do something like this, I prefer:

while(1)
  LPM4;